jedishrfu's latest activity

Sadly, PF does not accept or review personal content unless it has been peer-reviewed and published in a reputable journal. For that...

And Years turn into legend. It's a good time to close this thread, which has been spinning around the notion of ##a^0=1## since time...

Just goes to show that PF does a good job of setting the bar high.

I came across this YouTube Short from The Action Lab. I thought it was pretty cool that he searched Reddit and PhysicsForums when...

From the Forbes daily newsletter June 17, 2026:

Cookie law is a funny beast. Each country or region may have a different take on it. The law is based on where the user is from and not...

Offered for no charge, will ship internationally to a good home. Full title is "Electronic Properties of Two-Dimensional Systems"...

I have found a solution, thanks for the help!

The nice thing about that is that having a rigorous approach to infinitesimals allows you to correct some of the errors that people make...

Infintesimals are part of the hyperreals and so basic arithmetic is allowed ie canceling like infintesimals. Hyperreal number field was...

No but hyperreals could offer a check on your answer which I realize is a poor second to, getting the epsilon-delta proof correct in an...

If you have to sit a standard analysis exam, then appealing to hyperreal numbers won't help.

This may not be germane to the subject of this thread, but epsilon-delta proofs have been the bane of many calculus students, myself...

I don't follow what you're trying to do here, in particular by what you mean by "wrong case."

Trying to understand why ##a^0 = 1## by using the positive-integer interpretation ##a \times a \times a \times \cdots## is the wrong...